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Inductors

Inductors
An inductance of 0.08 μH is larger than

0.0000008 H
0.000008 H
0.000000008 H
0.00008 mH

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Inductors
The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is

1.25 mV
1.8 mV
180 mV
18 mV

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Inductors
Five inductors are connected in series. The lowest value is 8 μH. If the value of each inductor is twice that of the preceding one, and if the inductors are connected in order of ascending values, the total inductance is

248 μH
8 H
64 μH
32 μH

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Inductors
The winding resistance of a coil can be increased by

using a thinner wire
increasing the number of turns or using thinner wire
increasing the number of turns
changing the core material

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Inductors
Three 15 mH inductors are in series. The total inductance is

45 mH
30 mH
5 mH
15 mH

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Inductors
An inductor, a 1 k resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is

6 V
12 V
4 V
0 V

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